The tridentigerine genus Pseudogobius is widespread, from temperate to tropical areas of the Indo-west Pacific. A morphological review of the genus was carried out, with the initial focus on South-east Asian and Australian species. There are about 21 nominal species in the genus; however, the type specimens for some nominal species are missing. Our work recognises 15 valid species so far, including seven new species, which are described herein P. aquilonius n. sp., P. cinctus n. sp., P. eos n. sp., P. hoesei n. sp., P. jeffi n. sp., P. rhizophora n. sp. and P. verticalis n. sp. We also conclude that P. poicilosoma (Bleeker, 1849) is the senior synonym of P. javanicus (Bleeker, 1856). Pseudogobius poicilosoma, P. gastrospilos (Bleeker, 1853) and P. javanicus are accepted here as conspecific, although the types are in poor condition (note that all three names were given to specimens collected within close proximity to each other in coastal Java, Indonesia). A key to valid species is presented. The revision benefited from an adaptive feedback loop with companion genetic analyses, with the most comprehensive data available for the Australian region. Broader preliminary genetic data suggest the potential for recognition of additional cryptic species, with the current study providing a platform for future systematic work. Pseudogobius are a prominent part of estuarine biodiversity in the Indo-west Pacific, and this study helps to highlight the need to better understand the taxonomy and conservation requirements of cryptobenthic fishes.The dichotomous keys to 106 species from 62 genera of Ennominae (Lepidoptera Geometridae) of the Baikal region (Irkutskaya Oblast and Buryatia, Russia) is given. The annotated catalogue including synonyms, the details of examined specimens, data on distribution and hostplants with references is provided. Distribution of Macaria artesiaria ([Denis et Schiffermüller], 1775) in the Baikal region is confirmed. One species is newly combined with genus Hypoxystis Prout, 1915 H. reticulata (Sterneck, 1928) comb. nov. The genus name Scardostrenia Sterneck, 1928 is established to be a synonym of Hypoxystis Prout, 1915 syn. n. Some taxonomic aspects of Charissa turfosaria (Wehrli, 1922), Hypoxystis reticulata (Sterneck, 1928), Synopsia strictaria Lederer, 1853 and Autotrichia heterogynoides (Wehrli, 1927) are discussed. New westernmost boundary of the range of Abraxas karafutonis Matsumura, 1925 is established.García Coy (1994) described the hystrignathid nematode Longior alius García Coy, 1994 parasitizing the passalid beetle Antillanax pertyi (Kaup, 1869) from Guantánamo province, Eastern Cuba. Morffe García (2011) continued the studies on Cuban Longior and described L. longior Morffe García, 2011. https://www.selleckchem.com/products/sbc-115076.html Morffe et al. (2018) redescribed L. longior with the aid of SEM and molecular techniques. In their research the authors studied Longior individuals from the same host species and a locality close to the type locality of L. alius and compared their morphology, measurements and DNA markers with other material of L. longior. As a result of this analysis Morffe et al. (2018) concluded that L. alius and L. longior are conspecific and proposed L. alius as a synonym of L. longior.We describe here a new species in the genus Disersus Sharp, 1882 from the Otongachi Reserve in Ecuador. Disersus otongachi sp.nov. is externally similar to other representatives of the genus, however, this species can be clearly distinguished for significantly longer antennae and the unique shape of the male genitalia.A new species, T. yaolihuoi Huang, Jiang Song sp. nov. of the genus Teratozephyrus Sibatani, 1946 is described from southeastern China. Among the other representatives of the genus, the new species resembles only T. hinomaru Fujioka, 1994 from southwestern China, from which the new species can be separated easily by examining details in both wing pattern and the male genitalia. Wing patterns and genitalia of the new species and T. hinomaru are illustrated and compared.In this work, a new species, Kunbir shennongjiaensis sp. nov., from Shennongjia Forestry District, China, is described and illustrated. The differences between Kunbir shennongjiaensis sp. nov. and related species are provided.A new species of the genus Pycnogaster Graells, 1851 is described from Catalonia (Northeast of the Iberian Peninsula). Pycnogaster ribesiglesiasii n. sp. was collected in the Plana d'Ancosa in a calcicolous stepic scrub dominated mainly by thyme (Thymus vulgaris). L. ribesiglesiasii is compared to P. sanchezgomezi Bolívar, 1897 from which it can be separated mainly by the shape of the male cerci, the titillators and the male calling song. In addition, in the females by the protuberance of the seventh (7th) sclerite and the shape of subgenital plate.In the majority of species and genus names in Decapoda Crustacea, the author(s) of the name equate with the author(s) of the work. In a relatively small number of cases, however, the author(s) of the name are either a subset of the authors of the work or are not an author on the work-a phenomenon herein termed "innies". We demonstrate that these two categories should be differentially interpreted according to Articles 50.1 and 50.1.1 of the ICZN Code. To promote stability in cited authorship of historical names, it is proposed that 1) if the author(s) of the name are also an author on the work, these should be universally accepted as "innies", irrespective of any further explanation in the text (including a mere attribution following the taxon name); and 2) that if the author(s) of the name are not an author(s) of the work, these should only be considered as "innies" if a more expansive explanation is given in the text, not merely an attribution of authorship to the taxon name.Three Asclerobia species from the Palaearctic region are reviewed and diagnosed. A new species-Asclerobia alexandrae sp. nov. from Tyva region of Russia is described. The lectotype of Sclerobia tchahabarella Amsel, 1950 is designated, and the new combination-Asclerobia tchahabarella (Amsel, 1950) comb. nov. is proposed. A key to the species is given based on the combination of external and genitalia characters of both sexes.